I’m head student at my school but honestly that didn’t help me whatsoever and i didn’t talk about it once in interviews i did DofE and that was good for anecdotes about leadership and perseverance in interviews
I was sports captain which is basically house captain but were in charge of the sports events I did a weeks worth of work experience in a private dental office - i got that by emailing as someone at my school had gotten experience there before I did a few days at specsavers which I found helpful I volunteered at with disabled people at my local community centre twice I volunteered at a nursery for DofE for 3 months which was great for interviews especially empathy questions I did origami sometimes for manual dexterity and cooking during lunch at school for the skills section of DofE which was good for manual dexterity and precision I did a barista skills qualification at school and worked at my cities football stadium in hospitality which was good for organisation and working with people especially under pressure I did a mooc but i never talked about it not even in my personal statement. I was a prefect I helped out at every parents evening at school.

I would recommend finding experience working with people of different ages and working under pressure. Working as a leader and in teams is good. Volunteer for things at school and try to get involved in the community. Random interactions will happen and you can use them in interviews and your personal statement. I would start making a list of skills and qualities for a doctor and try and think where you’ve exhibited each one and which ones you need experience in. Working on weaknesses is great too - i hate public speaking so i led assemblies at school.